The Galaxy S24+ is the large, QHD+ phone of the S24 line, and it has one trait that its owners rarely connect with heat: the panel can run at a higher resolution than the S24's, and a sharper panel at 120 Hz asks more of the chip. In the United States the phone uses Qualcomm's Snapdragon 8 Gen 3 for Galaxy; in many other regions it uses Samsung's Exynos 2400, and the Exynos models are the ones that owners mention most when they describe heat. Owners of the S24 family also describe heat and heavy standby drain after One UI 8.5. A phone that is warm while gaming or charging at 45 W is normal; one that is warm with the screen off is the case to investigate.
Differential
Likely causes of “Samsung Galaxy S24+ gets hot or shows a temperature warning”, and how to tell them apart
- 1
45 W fast charging in a case
What separates it The back near the camera is hot during a charge and stays warm after you unplug
How to confirm Remove the case, charge on a hard surface, and leave the phone alone while it charges
- 2
The display set to its highest resolution and refresh rate
What separates it The phone is warm during scrolling and video, and the battery bar drops visibly
How to confirm Settings, Display, Screen resolution and Motion smoothness: try FHD+ and Standard for a day
- 3
An update that left a background job running
What separates it Warmth and drain began after One UI 8.5 or a monthly patch, with the screen off
How to confirm Install the newest patch, restart, and track the Battery page for two or three nights
- 4
One app with a hold on the processor
What separates it A shopping, delivery or video-call app is at the top of Battery usage while the back is hot
How to confirm Update the app, clear its cache and see whether the heat follows it
- 5
Sun or a hot car
What separates it The phone is hot after hours on a dashboard
How to confirm Move it to shade and let it cool before you use it or charge it
Before you touch a setting
Record this first — changing settings destroys the evidence
- The model number from Settings, About phone, to see whether it is a Snapdragon or an Exynos S24+
- Which of charging, camera, gaming or video calls triggers it, with the date it began
- Whether it is warm with the screen off, and for how long
- The top two apps in Battery usage during the hot period
Try in this order
0 of 6 completedCool the phone first
ReversibleClose apps, remove the case and leave the phone in the shade with the screen off.
Find the app that uses the most
ReversibleSettings, Battery, Battery usage; tap the top app and see whether its time is background.
Drop the display settings for a day
ReversibleSettings, Display, Screen resolution: choose FHD+; Motion smoothness: choose Standard. The panel is a heavy draw at QHD+ and 120 Hz.
Install the newest patch
ReversibleSettings, Software update, Download and install, then restart.
Charge in better conditions
ReversibleUse a 45 W PD PPS adapter on a hard surface, with no case, and avoid using the phone while it charges.
Run Safe mode and send a report
ReversibleHold the power key, touch and hold Power off and tap Safe mode. If the heat remains, open Samsung Members, Get help, Error report.
Model-specific
What is true of this model and not of its siblings
- The S24+ panel
- A 6.7-inch Dynamic AMOLED 2X screen that supports QHD+ resolution at up to 120 Hz; reducing either setting is the easiest way to cool the phone and save battery.
- The chip depends on the region
- US phones use the Snapdragon 8 Gen 3 for Galaxy; many other markets use Samsung's Exynos 2400, which owners report as the warmer of the two.
- The panel that heats the S24+
- A 6.7-inch screen at QHD+ and 120 Hz can be the largest single power draw in the phone, and a larger panel dumps heat into the glass above the processor. Dropping to FHD+ and Standard refresh for a day is the single most informative test.
- The Exynos question
- If your S24+ has an Exynos 2400, you are in the group that reviewers and owners most often describe as running warm; Samsung offers no setting to change the chip's behavior, so lowering the load is the way to manage it.
- When the heat is a repair
- If a phone is hot with the screen off in Safe mode, or a charge that used to take an hour now heats the back quickly, ask Samsung to test the battery and the charging circuit.
Stop boundary
When this stops being a self-service repair
- !Heat with the screen off in Safe mode earns a Samsung check, and the error report from Samsung Members should go with it
- !If a charge on two chargers with no case heats the phone sharply, ask for a charging-circuit test
- !A swollen back or a hot smell means stop using the phone now
Evidence ledger
Sources behind this answer
Exact questions
Common questions
Is the S24+ more prone to heat than the S24?+
It is larger, so it sheds heat better at rest, but it charges at 45 W and drives a sharper panel, so charging and screen settings are where its heat comes from.
Does the Exynos 2400 run hotter than the Snapdragon?+
Owners often report more heat on Exynos phones, and reviewers have measured it. Check which chip you have under Settings, About phone.
Is the heat after One UI 8.5 a known problem?+
Many owners of the S24 family describe it on Samsung's forums, and Samsung asks for error reports while patches follow.
What should I do if my S24+ gets too hot to hold?+
Switch it off, take the case off and rest it in shade; do not use a fridge.
Does a bigger phone like the S24+ stay cooler?+
At rest it sheds heat better, but its 45 W charging and sharper panel add more, so it can still run warm.
What does the temperature warning on the S24+ mean?+
The phone is limiting the camera, the flash or charging to protect itself. Stop using it and let it cool.